Answer:
13 is the prime number
Step-by-step explanation:
You must take into account that a prime number is one that is just divisible by 1 and itself. So, let's analyse each number.
Number 14
If you divide 14 by 1 you obtain 14.
If you divide 14 by 14 you obtain 1.
If you divide 14 by 2 you obtain 7.
If you divide 14 by 7 you obtain 2.
14 is not prime because is divisible by 1, 2, 7, and 14
Number 13
If you divide 13 by 1 you obtain 13.
If you divide 13 by 13 you obtain 1.
13 is a prime number because it can't be divided by other number, just 1 and itself
Number 21
If you divide 21 by 1 you obtain 21.
If you divide 21 by 21 you obtain 1.
If you divide 21 by 3 you obtain 7.
If you divide 21 by 7 you obtain 3.
21 is not prime because is divisible by 1, 3, 7, and 21
Number 33
If you divide 33 by 1 you obtain 33.
If you divide 33 by 33 you obtain 1.
If you divide 33 by 3 you obtain 11.
If you divide 33 by 11 you obtain 3.
33 is not prime because is divisible by 1, 3, 11, and 33
Thus, 13 is the prime number
Answer:
Step-by-step explanation:
9x - 5 = 58
9x = 63
x = 7
<2 = 32°
7y + 27 + 58 + 32 = 180
7y + 117 = 180
7y = 63
y = 9
for <1: x + 58 = 180
x = 122°
Answer:
Number of trials are 250.
Step-by-step explanation:
A researcher finds 15% of all commuters in a metropolitan area take the train to work.
The researcher polls 250 people in the area to ask them whether they take the train to work or not.
We have tell the number of trials for this binomial experiment.
Researcher will do 250 trials to confirm whether they take the train work and this irrespective of their response.
Answer:
C: 250
Step-by-step explanation:
Correct on edge :)
Answer:
44 inches
Step-by-step explanation:
The side length is the square root of the area:
A = s^2
121 in^2 = s^2
√(121 in^2) = s = 11 in
The perimeter of a square is 4 times the side length (since all four sides are the same length).
P = 4s = 4(11 in) = 44 in
The perimeter of the square is 44 inches.
The area of a square is 121 square inches, what is the perimeter of the square? inches
The perimeter = 44 inches
Area = 121 inches²
.°. Length of a side = √(121 inches²) = 11 inches
Now,
Perimeter of the square =
Length of a side×4
= 11 inches × 4
= 44 inches.
80%
Ummm bro the explanation is simple he keeps 8/10 and he saves 2/10 sooo
8/10 x 10 = 80/100 spends 80%
2/10 x 10 = 20/100 saves 20%
Easy peasy...
Glen saves $2 out of every $10 he earns, which is 20%. Therefore, he spends 80% of his earnings. That's the percentage of the money he gets to spend.
To figure out what percent of his earnings Glen gets to spend, you need to look at the portion that he is not required to save. If he earns $10 and is required to save $2, he gets to spend $7 out of every $10.
This means Glen gets to keep 80% of his earnings. The reasoning here is simple: for every $10, he saves $2 (which is 20% of $10) and the rest, which is $8, he gets to spend. Therefore, the percentage of his money that he gets to spend is $8/$10*100 which equals to 80%.
#SPJ2